US11072001B2 - Vibratory screening apparatus - Google Patents

Vibratory screening apparatus Download PDF

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Publication number
US11072001B2
US11072001B2 US16/098,588 US201716098588A US11072001B2 US 11072001 B2 US11072001 B2 US 11072001B2 US 201716098588 A US201716098588 A US 201716098588A US 11072001 B2 US11072001 B2 US 11072001B2
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United States
Prior art keywords
support
assembly
screen
screening apparatus
vibratory screening
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US16/098,588
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English (en)
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US20190118225A1 (en
Inventor
Lars Grönvall
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Metso Finland Oy
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Metso Outotec Finland Oy
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Assigned to METSO MINERALS, INC. reassignment METSO MINERALS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GRÖNVALL, Lars
Publication of US20190118225A1 publication Critical patent/US20190118225A1/en
Assigned to Metso Outotec Finland Oy reassignment Metso Outotec Finland Oy MERGER AND CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: METSO MINERALS, INC., OUTOTEC OY
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/36—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro in more than one direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/40—Resonant vibration screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/14—Details or accessories
    • B07B13/16—Feed or discharge arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B2201/00—Details applicable to machines for screening using sieves or gratings
    • B07B2201/02—Fastening means for fastening screens to their frames which do not stretch or sag the screening surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B2201/00—Details applicable to machines for screening using sieves or gratings
    • B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens

Definitions

  • the present invention relates to a vibratory screening apparatus comprising a plurality of piled screening decks.
  • Vibratory screening apparatuses for wet fine particle sizing and separation are widely used in mineral processing facilities, but also in drilling industry for removing drill cuts from drilling fluids.
  • An object of the invention is to provide a vibratory screening apparatus with easy maintenance.
  • Another object of the invention is to provide a vibratory screening apparatus with a small foot print.
  • Another object of the invention is to provide a compact arrangement of screening decks.
  • a vibratory screening apparatus comprising a support; at least two screen decks arranged one over the other as an assembly, each screen deck including a screen frame, a screen and a chamber underlaying the screen surface, an outlet duct for oversized material and an outlet duct for undersized material that is in communication with the chamber; mountings configured for mounting the assembly of the at least two screen decks to the support; a drive support with a motor assembly configured for vibrating the assembly of the at least two screen decks; and a feed unit configured to feed the material to be screened to each screen deck; wherein the feed unit is arranged on the support and configured to be moved between a feed position and a maintenance position, and wherein the assembly of the at least two screen decks is resiliently arranged on the support, while the feed unit is non-resiliently arranged on the support.
  • the feed unit By arranging the feed unit on the support and being configured to be moved between a feed position and a maintenance position, easy access to the assembly of the at least two screen decks, as well as the feed unit is enabled when the feed unit is set in the maintenance position.
  • the feed unit By arranging the feed unit on the support non-resiliently, while the assembly of the at least two screen decks is resiliently arranged on the support, the feed unit will be still, while the assembly of the at least two screen decks will vibrate during operation.
  • the feed unit is articulately arranged on the support, and in one embodiment the feed unit is articulately arranged on a lower part of the support.
  • the vibratory screening apparatus further comprises an abutment support attached to the support and arranged to provide an abutment surface for the feed unit when set in the feed position.
  • the feed unit is not locked to the different screen decks, but are aligned to the assembly of the at least two screen decks to distribute material to each screen deck. This enables, among others, easy movement of the feed unit between the feed position and the maintenance position.
  • the at least two screen decks are arranged directly piled on top of each other.
  • the assembly of the at least two screen decks may even be self-supporting.
  • the screen decks have notches and protrusions which are configured to interact with corresponding notches and protrusions on the adjacent screen decks in the assembly when being piled directly on top of each other.
  • the vibratory screening apparatus may further comprise a tension strut configured to maintain the assembly of the at least two screen decks tight together.
  • the assembly of the at least two screen decks are configured to allow replacement as a single unit with a new assembly of at least two screen decks.
  • the above disclosed mountings may be resilient mountings.
  • the assembly of the at least two screen decks has a first side facing the support, which first side is fasten to the support with at least one resilient mounting.
  • the assembly has a second side, opposite the first side, which the second side is fastened to the drive support, and wherein the drive support is fastened to the support with at least one resilient mounting.
  • the assembly of the at least two screen decks has a first side facing the support, wherein the assembly is fastened to the support with at least two mountings, while the second side of the assembly, opposite the first side, is fastened to the support with at least one mountings.
  • the assembly of the at least two screen decks has a first side facing the support, which first side is fastened to the support with at least one mounting, while the second side of the assembly, opposite the first side, is fastened to the support with at least two mountings.
  • the support comprises a lower part of the support and an inclined part of the support.
  • the first side facing the lower part of the support may be fastened to the lower part of the support with at least one mounting, while the second side of the assembly, opposite the first side, may be fastened to the inclined part of the support with at least one mounting.
  • the support may comprise a lower part of the support and an inclined part of the support.
  • the first side facing the lower part of the support may be fastened to the lower part of the support with at least one resilient mounting
  • the second side of the assembly, opposite the first side may be fastened to the drive support
  • the drive support may be fastened to the inclined part of the support with at least one resilient mounting.
  • FIG. 1 is a perspective view of a vibratory screening apparatus according to one embodiment of the invention.
  • FIG. 2 is a side view of the vibratory screening apparatus of FIG. 1 with the feed unit in a feeding position.
  • FIG. 3 is a side view of the vibratory screening apparatus of FIG. 1 with the feed unit in a maintenance position.
  • FIG. 4 is a perspective view of a screen deck assembly with a drive support including a motor assembly according to one embodiment of the invention, further showing a close up and an exploded view of a part of the screen frame.
  • FIG. 5 is a side view of a vibratory screening apparatus according to another embodiment of the invention.
  • FIGS. 1, 2 and 3 show a vibratory screening apparatus 1 according to one embodiment of the invention.
  • the vibratory screening apparatus 1 has a support 2 including a lower part 2 a and an inclined part 2 b .
  • Screen decks 30 are piled directly on top of each other forming an assembly 3 of the screen decks 30 .
  • the assembly 3 of screen decks 30 has a first side 3 a facing the lower part 2 a of the support 2 , which first side 3 a is attached with the lower part 2 a of the support 2 with two resilient mountings 4 a .
  • On a second side 3 b opposite the first side 3 a , the assembly 3 of screen decks 30 is attached to a drive support 5 with a motor assembly 6 .
  • the drive support 5 is attached to the inclined part 2 b of the support 2 with two resilient mountings 4 b.
  • a feed unit 7 with a number of distributors 8 is arranged on the support 2 with an articulated coupling 9 to be movable between a feed position as shown in FIGS. 1 and 2 , and a maintenance position as shown in FIG. 3 .
  • the vibratory screening apparatus 1 further has an abutment support 10 attached to the lower part 2 a of the support 2 , and this abutment support 10 is arranged to provide an abutment surface for the feed unit 7 when set in the feed position.
  • the feed unit 7 does not rest upon the assembly 3 of screen decks 30 , but only align the different distributors 8 with the screen decks 30 .
  • the distributor outlets 8 a may in one embodiment comprise a flexible material to bridge any distance between the distributor outlet 8 a and the screen decks 30 .
  • the vibratory screening apparatus 1 may further comprise a second abutment support 11 , also this attached to the lower part 2 a of the support 2 , and this second abutment support 11 is arranged to provide an abutment surface for the feed unit 7 when set in the maintenance position as shown in FIG. 3 .
  • FIG. 4 a perspective view of the assembly 3 of the screen decks 30 together with the drive support 5 and the motor assembly 6 is shown.
  • Each screen deck 30 comprises a screen frame 31 , a screen 32 and a chamber underlaying the screen surface. The chamber is however not evident from FIG. 4 .
  • the vibratory screening apparatus 1 has an outlet duct 12 for oversized material and an outlet duct 13 for undersized material.
  • the outlet duct 12 for oversized material is in communication with the upper surface of the screen decks 30
  • the outlet duct 13 for undersized material is in communication with the chambers.
  • the screen decks 30 may be piled directly on top of each other by piling the screen frames 31 on top of each other.
  • the aligning of the screen frame 31 is made with the aid of notches 34 and protrusions 35 arranged on the screen frames 31 , which notches 34 and protrusions 35 are configured to interact with corresponding notches 34 and protrusion 35 on the adjacent screen decks 30 in the assembly 3 .
  • the screen decks 30 are held together by a tension strut 36 , and the screen deck assembly 3 as such is self-supporting with the piled screen frames 31 .
  • the feed unit 7 When maintenance is to be made on the assembly 3 of screen decks 30 or on the feed unit 7 , the feed unit 7 is moved to its maintenance position, as shown in FIG. 3 and FIG. 5 . In this position, the feed unit 7 may be maintained and/or the assembly 3 of screen decks 30 may be maintained. In one embodiment the whole assembly 3 of screen decks 30 may be replaced as one single unit.
  • the assembly 3 is loosened from the resilient mountings 4 a on the first side 3 a
  • the drive support 5 is loosened from the resilient mountings 4 b on the inclined part 2 b of the support 2
  • the drive support 5 is loosened from the second side 3 b of the assembly 3 .
  • the assembly 3 is removed and replaced with a new assembly 3 of screen decks 30 .
  • FIG. 5 another embodiment of the invention is shown, a vibratory screening apparatus 1 that has an alternative support 2 to the one shown in FIGS. 1-3 .
  • a separate support member 2 a - 1 may be arranged for mounting of the first side 3 a of the assembly 3 and the abutment support 10
  • another separate support member 2 a - 2 may be arranged for the articulated coupling 9 .
  • a further separate support member 2 b is arranged for mounting of the second side 3 b of the assembly 3 , either directly, or in case of a vibratory screening apparatus 1 , via a drive support 5 .
  • the screen decks do not necessarily have to be piled directly on top of each other, they may also be attached to a support arrangement supporting each screen deck separately, but the screen decks may still be arranged as an assembly.

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  • Combined Means For Separation Of Solids (AREA)
  • Jigging Conveyors (AREA)
US16/098,588 2016-05-04 2017-05-03 Vibratory screening apparatus Active 2037-09-22 US11072001B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP16168337.0A EP3241619B1 (en) 2016-05-04 2016-05-04 Screening apparatus
EP16168337.0 2016-05-04
EP16168337 2016-05-04
PCT/EP2017/060521 WO2017191181A1 (en) 2016-05-04 2017-05-03 Vibratory screening apparatus

Publications (2)

Publication Number Publication Date
US20190118225A1 US20190118225A1 (en) 2019-04-25
US11072001B2 true US11072001B2 (en) 2021-07-27

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Application Number Title Priority Date Filing Date
US16/098,588 Active 2037-09-22 US11072001B2 (en) 2016-05-04 2017-05-03 Vibratory screening apparatus

Country Status (16)

Country Link
US (1) US11072001B2 (zh)
EP (1) EP3241619B1 (zh)
CN (1) CN109311059B (zh)
AU (1) AU2017259023B2 (zh)
BR (1) BR112018072685B1 (zh)
CA (1) CA3022917A1 (zh)
CL (1) CL2018003115A1 (zh)
ES (1) ES2904647T3 (zh)
MX (1) MX2018013470A (zh)
PE (1) PE20190132A1 (zh)
PL (1) PL3241619T3 (zh)
PT (1) PT3241619T (zh)
RU (1) RU2729664C2 (zh)
UA (1) UA122717C2 (zh)
WO (1) WO2017191181A1 (zh)
ZA (1) ZA201807740B (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3241619B1 (en) * 2016-05-04 2021-10-27 Metso Outotec Finland Oy Screening apparatus
CN114101070B (zh) * 2020-09-03 2022-12-13 深圳联达钮扣有限公司 用于钮扣的厚度分选设备及组合分选设备
CN112845083B (zh) * 2020-12-14 2023-05-09 山东诚丰种业科技有限公司 一种粒状物的分级定量筛选设备及其筛选方法

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Publication number Publication date
BR112018072685B1 (pt) 2022-05-10
EP3241619B1 (en) 2021-10-27
RU2729664C2 (ru) 2020-08-11
RU2018140790A3 (zh) 2020-06-16
CL2018003115A1 (es) 2018-12-21
WO2017191181A1 (en) 2017-11-09
EP3241619A1 (en) 2017-11-08
ZA201807740B (en) 2020-05-27
CA3022917A1 (en) 2017-11-09
BR112018072685A2 (pt) 2019-02-19
AU2017259023A1 (en) 2018-12-20
RU2018140790A (ru) 2020-06-04
ES2904647T3 (es) 2022-04-05
CN109311059B (zh) 2020-09-25
US20190118225A1 (en) 2019-04-25
AU2017259023B2 (en) 2022-04-28
PE20190132A1 (es) 2019-01-18
UA122717C2 (uk) 2020-12-28
PT3241619T (pt) 2022-01-28
PL3241619T3 (pl) 2022-04-04
MX2018013470A (es) 2019-07-08
CN109311059A (zh) 2019-02-05

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